I honestly don’t know if im overthinking things but im quite upset about it. My best friend (who i consider to be my sister) hasn’t really been there for me for a while, she recently just straight up ignored me when i approached her to say i’ve been feeling down, i just wanted to have a chat nothing major just i was feeling down. Well, i have just found out that exact day she ignored me, she was playing an online game with my ex boyfriend (btw they were never friends when we were actually together, spoke to each other a handful of times, met each other once type of thing). She’s never told me she’s stayed in contact with him, it’s been over a year now. i just feel betrayed? i get that i cannot control who she is friends with, but i don't know it just feels icky to me if that makes sense. Idk how to approach her because she doesn’t know i know, i just saw his name on her team on her play history and was like… huh??